Integrated Crop Management News
 

Document Type

Article

Publication Date

7-19-1999

Abstract

Leaf diseases are appearing on corn in many areas of the state. This is not too surprising, considering the amount of rain we have had. Fortunately, in most fields so far the symptoms are due to holcus spot or anthracnose, which do not tend to spread rapidly among the plants during mid-season. Anthracnose has become severe in some fields following the heavy rains, but the new leaves should escape infection. No in-season control measures are recommended for anthracnose. Other diseases are appearing and some of these are a bigger concern, especially in seed corn. Paul Klemme of Novartis Crop Protection reports that common rust, northern leaf spot, and gray leaf spot are appearing in many southern Iowa seed fields.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.